ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The critical behavior of certain frustrated magnetic crystals with competing interactions has been studied. It is predicted that the layered-triangular lattice antiferromagnets VCl2, VBr2, CsMnBr3, and CsVCl3 and the helical magnets β-MnO2, MnAu2, Ho, Dy, and Tb should belong to new universality classes characterized by novel critical exponents: α(approximately-equal-to)0.34–40, β(approximately-equal-to)0.25–0.28, γ(approximately-equal-to)1.1, and υ(approximately-equal-to)0.53–0.55. The chirality κ is a new relevant operator in these systems; the corresponding exponents are found to be βκ (approximately-equal-to)0.40 and γκ (approximately-equal-to)0.80, which satisfy the Essam–Fisher relation with ακ ≡α. The possibility of observing the chiral order is mentioned.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.340905
Permalink